code: def convert_binom(binom):
      expr_n = convert_expr(binom.n)
      expr_k = convert_expr(binom.k)
      return sympy.binomial(expr_n, expr_k, evaluate=False)
  
imports: from importlib.metadata import version
  import sympy
  from sympy.external import import_module
  from sympy.printing.str import StrPrinter
  from sympy.physics.quantum.state import Bra, Ket
  from .errors import LaTeXParsingError
label_desc: Use image node_id 15 for calling a global function with example usage: convert_binom(binom) and returns: sympy